For hosting common files it's ok. Also it is on Android too do, great to transfer files between your Windows and your phone. But if you want better security you have to subscribe a monthly offer.
Dropbox - Online Sync and File Sharing
CloudTop - CloudTop is an online cloud web desktop.
Google Drive - Access and sync your files anywhere
Doky - Doky is the Cloud Operating System Web 3.0 based on open-source .
Mega - Secure File Storage and collaboration
eyeOS - eyeOS is a web desktop following the cloud computing concept that seeks to enable collaboration and communication among users.